--- a/src/java.desktop/macosx/classes/com/apple/laf/AquaMenuBarBorder.java	Mon Jan 22 08:00:43 2018 -0800
+++ b/src/java.desktop/macosx/classes/com/apple/laf/AquaMenuBarBorder.java	Fri Jan 26 10:49:37 2018 -0800
@@ -31,13 +31,14 @@
 import java.awt.Insets;
 
 import javax.swing.border.Border;
+import javax.swing.plaf.UIResource;
 
 import sun.swing.SwingUtilities2;
 
 /**
  * The class represents the border of a {@code JMenuBar}.
  */
-public class AquaMenuBarBorder implements Border {
+public class AquaMenuBarBorder implements Border, UIResource {
 
     @Override
     public void paintBorder(final Component c, final Graphics g, final int x,